HP 8510 User Manual page 38

Figure 6-1. Amplifier Gain, Frequency Domain Point-in-Pulse
The dynamic range can be increased using IF averaging, but, given the system noise oor with
the wide IF bandwidth, an averaging factor of about 256 averages is the maximum value that
should be used. In general, using an averaging factor greater than 256 will not result in any
increase in visible dynamic range.
Frequency Domain Point-in-Pulse Measurements 6-3